The Logitech MX revolution cordless laser mouse features hyper-fast scrolling, quick flip, touch to search, an ergonomic grip and deep sculpted thumb support, convenient controls, an advanced laser engine for more accurate tracking, and a built-in rechargeable lithium ion battery with four stage battery level indicator. It is compatible with both Mac OS X and higher as well as Windows XP and above with an available USB port. It is backed by a three year limited warranty on parts and labor.